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Black Phosphorus and Polymeric Carbon Nitride Heterostructure for Photoinduced Molecular Oxygen Activation
Author(s) -
Zheng Yun,
Yu Zihao,
Ou Honghui,
Asiri Abdullah M.,
Chen Yilin,
Wang Xinchen
Publication year - 2018
Publication title -
advanced functional materials
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 6.069
H-Index - 322
eISSN - 1616-3028
pISSN - 1616-301X
DOI - 10.1002/adfm.201705407
Subject(s) - materials science , carbon nitride , exfoliation joint , heterojunction , photocatalysis , oxygen evolution , photochemistry , semiconductor , oxygen , nitride , radical , carbon black , black phosphorus , graphitic carbon nitride , chemical engineering , nanotechnology , graphene , optoelectronics , catalysis , layer (electronics) , organic chemistry , electrode , chemistry , natural rubber , composite material , engineering , electrochemistry
Metal‐free heterostructure photocatalysts composed of black phosphorus (BP) and polymeric carbon nitride (CN) are successfully synthesized via a one‐step liquid exfoliation method assisted by sonication. The combination of BP with CN strengthens the visible‐light harvesting ability, facilitates the charge separation in the photocatalytic process, and renders promoted activity of photoinduced molecular oxygen activation, such as superoxide radicals (·O 2 − ) evolution and H 2 O 2 production. This work highlights that coupling semiconductors with well‐matched band levels provide a flexible route to enhance the performance of photocatalysts for producing reactive oxygen species, and gives ideas for the design of highly active and metal‐free materials toward sustainable solar‐to‐chemical energy conversion and environmental remediation.